tqcc
Non Destructive Testing
Training & Certification
  • Non Destructive Testing
    Non Destructive Testing

    Non Destructive Testing

    Nowadays, inspection techniques have become vital in the industry in order to evaluate the properties of variable materials or systems, without causing damage and ensuring the safety of the component as well as the operators, saving both time and money in product evaluation, troubleshooting and research. Non Destructive Testing (NDT) methods can be adapted to automated production processes, as well as to the inspection of localized problem areas.

    By inspecting the health of a component we are able to prevent greater damage to the whole mechanism and minimize repair costs, prevent possible sources of corrosion or damage right in the source as well as ensure that the quality of the components that are produced complies with the required quality standards.

  • Visual Testing (VT)
    Visual Testing (VT)

    Visual Testing (VT)

    The method of Visual Testing (VT), is the oldest NDT method that was discovered and is used prior to and along with all the other techniques in Non-Destructive Testing during the inspection procedure.

    The specific method uses as a basic tool the human eye and in combination with the appropriate techniques and equipment (magnifying glasses, endoscopes, mirrors etc.), it can be implemented at any stage of the construction or operation of the parts and can reveal important manufacturing or service flaws.

  • Magnetic Particle Testing
    Magnetic Particle Testing

    Magnetic Particle Testing

    Magnetic Particle Testing is one of the basic NDT techniques with numerous applications in the industry, used for the detection of surface or shallow sub-surface defects.

    Magnetic Particle inspection technique involves the magnetization of a component, followed by the application of ferromagnetic particles. The particles align along discontinuities, indicating the position of surface or shallow sub-surface defects. This NDT technique is used for the inspection of welds, castings and forgings and is applicable only to ferromagnetic materials.

  • Penetrant Testing (PT)
    Penetrant Testing (PT)

    Penetrant Testing (PT)

    The method of Penetrant Testing (PT) is one of the basic NDT techniques with numerous applications in the industry. Liquid or dye penetrant testing is a non –destructive method for finding discontinuities that are open to the surface of solid and essentially non-porous materials. Indications of flaws can be found regardless of the size, configuration, internal structure, or chemical composition of work piece being tested and regardless of flaw orientation. 

  • Ultrasonic Testing (UT)
    Ultrasonic Testing (UT)

    Ultrasonic Testing (UT)

    Quality Control with the use of the Ultrasonic Testing (UT) technique is one of the most effective and most widely used Non Destructive Testing methods in the industry, used for the detection of discontinuities that exist near the surface or deep into the material that is inspected.

    The method of Ultrasonic Testing (UT) is based on the principle that any existing discontinuity within a component is acting as a reflector of sound waves.

  • Radiography Testing
    Radiography Testing

    Radiography Testing

    Radiography Testing (RT) is the oldest from the modern Non Destructive Testing methods that are used. Despite the disadvantages of the method and the fact that several NDT methods have been developed, Radiography is the most widely used method, especially in the modern construction industry.

    In this method, a specific radiographic film is placed under the sample that is inspected. Then the sample is exposed to radiation, the radiation passes through the sample and is exposed to the radiographic film. Discontinuities within the component that is inspected affect the exposure and the indications on the film.

  • Eddy Current Testing (ET)
    Eddy Current Testing (ET)

    Eddy Current Testing (ET)

    The method of Eddy Current Testing (ET) is used mainly for quality control in aerospace structures and is implemented for the detection of both surface and shallow subsurface discontinuities.

    In the specific method a current is induced when a magnetic field cuts through a metal. An “Eddy Current” is generated when the magnetic field cuts through a metal sample that is not connected to a circuit. This Eddy Current produces a flow pattern which is disturbed by the existence of any discontinuities from the surface up to a shallow depth of penetration in the component that is inspected.

  • Welding Inspector
    Welding Inspector

    Welding Inspector

    The Welding Inspector (WI) must follow a quality specification guide .This is a detailed production and quality control guide that is required from the company and is approved from the customer.

    In general, the certified Welding Inspector (WI) course provides candidates with basic information about the inspector’s tasks and responsibilities. In addition, this course provides important information concerning the existing relevant quality standards, the main welding processes and the consumables that are used as well as the safety issues that need to be taken under consideration.

  • Phased Array (PA)
    Phased Array (PA)

    Phased Array (PA)

    The conventional ultrasonic transducers that are used for NDT applications commonly consist of either a single active element, that both generates and receives waves with high frequency, or two paired elements, one for receiving and one for transmitting. On the contrary, Phased Array (PA) probes typically consist of a transducer assembly with 16 up to 256 small individual elements, with each one of them able to be pulsed separately.

  • Time of Flight Diffraction (TOFD)
    Time of Flight Diffraction (TOFD)

    Time of Flight Diffraction (TOFD)

    The Time of Flight Diffraction (TOFD) ultrasonic method was developed in the late 1970s by Dr. Maurice Silk after a series of trials in the nuclear reactor PWR in the United Kingdom, due to the need in developing a more accurate ultrasonic method in the dimensioning of defects.

    It is used in various industrial sectors for detecting and for sizing defects, especially in the onshore and offshore oil and gas industry, as well as in the nuclear industry. Nowadays, it used in multiple industrial sectors as detection and dimensioning tool, due to the multiple benefits that it has to offer.

  • Macro Etch Inspection (MEI)
    Macro Etch Inspection (MEI)

    Macro Etch Inspection (MEI)

    The method of Macro Etch Inspection (MEI) involves the selective chemical cleaning of the inter-granular area with the use of chemical substances, as well as enhancing visual contrast between the inter-granular areas with the grains of the metallic material.

    Macro Etch Inspection is used for the detection of discontinuities open in the surface of the material, for the qualitative differentiation of grain sizes as well as grain orientation. Certain phases of metallurgy can also be identified with the use of this NDT method.

  • Acoustic Emission (AE)
    Acoustic Emission (AE)

    Acoustic Emission (AE)

    The method of Acoustic Emission (AE) is one of the newest techniques in the industry of NDT, which is using transient elastic waves that are created from the rapid release of energy from localized sources within a material.

    In the specific method appropriate piezoelectric transducers are used in order to convert the transient elastic waves into electrical signals.

Continuing training

TQCC can also supply a variety of courses on various subjects, according to the specific needs of the client...Read more

Recognized Certification

The certification in accordance with EN473/ISO 9712 is offered by The British Institute of Non-Destructive Testing (BINDT/PCN) or the...Read more

Consultancy services

TQCC provides Level III consultancy services to industry and NDT professionals...Read more